Proceedings PaperHologram: the diffraction grating, the lens, or whether tertio est datur?
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In the wave diffracted by a hologram, geometrical and boundary waves may be distinguished despite the diffraction character of this wave. The boundary wave is directly related to the shape of amplitude distribution in object image point. The imaging by means of the small holograms deserves a particular attention. The losses of information connected with diminishing hologram size are closely related to high value of the boundary wave. This fact is essential when the holograms are to be coupled with the systems of integrated optics.